#include <bits/stdc++.h>
using namespace std;
#define PI 3.1415926
#define   SQUARE(x) ((x)*(x))
//double SQUARE(double x) { return x*x;}

int main()
{
	int n, x,y;
	scanf("%d",  &n);

	if(n == 0) printf("zero");
  if(n > 0)  printf("positive");
  if(n < 0)  printf("negative");


  return 0;
}
